Representing functions as rules and graphs
Let's begin by looking at an example:
At a store the carrots cost $2.50/lb. The prize the customer pays is dependent on how many pounds of
carrots that he buys. Another way to say this is to say that the total co
Expressions and variables
An algebraic expression comprises both numbers and variables together with at least one arithmetic
operation.
Example
4x3 4x3
A variable, as we learned in pre-algebra, is a letter that represents unspecified numbers. One may use
Composing equations and inequalities
Equations and inequalities are both mathematical sentences formed by relating two expressions to each
other. In an equation the two expressions are deemed equal which is shown by the symbol =.
x=y x is equal to y
Where
Composing expressions
In the previous section we used an example where we wanted to know how many hours a person works
over a period of two days if he each day were to work 4 hours before lunch and 3 hours after lunch. As
we could see this problem could b
Operations in the right order
When faced with a mathematical expression comprising several operations or parentheses, the result
may be affected by the order in which the various operations are tackled e.g.
472 472
the result is influenced if we take the
Algebra 1 Name
7-2 Notes Multiplying and Dividing Monomials Hour Date
Warm up: Simplify the following. (Where should you start?)
i v 3 My w
1. 3x4}y =qxx$ 2 2x5l3x4l :
. 52;?
18x3 -x6 /
MiGCm;
Objective: To evaluate powers